. >>> let's talk about former south african president nelson mandela. he's at home in johannesburg after more than two weeks in the hospital. cnn has an exclusive terview with the two granddaughters and she's here to tell us about it. tell us what the family members are saying about his condition now. >> i spoke to them this morning and i said to them, we heard so much over the last few weeks, let's hear from you. how is your grandfather really doing? here's what they had to say. >> he's sitting up, he was waving at the kids and smiling at the kids. he's very alert. and he's very aware what's going on. he's doing extremely well. he's doing very well. >> once in a while he needs, you know, medical care, medical attention, and, you know, we're very grateful because, you know, he is surrounded by the best medical team. he's very well taken care of and he's very comfortable and he's very happy. >> the first thing i thought, i mean, you know, good news, they're very upbeat about it. they're beautiful. >> beautiful women inside and out. and they called me bec